Hi, I've just replaced my pcb board in my glow worm 30cxi combi boiler and all's good and well on the digital display when I use the hot water it states around
6.0 but when I put the central heating on the digital display changes to 49? something I've never seen before....do I need to reset my thermostat ?? I'm a woman and changed the board myself, so any easy explanation will do lol....am just wondering if boiler is safe with it saying the temp in ? rather than 0.6 or 0.8..... thank you